WebP is an image format based on VP8, it supports lossless and lossy compression. Its very useful to keep image sizes low on asset heavy websites, improving load times. Wiki: https://en.wikipedia.org/wiki/WebP Below is a bash script that is meant to be executed on the root of your static directory, it will convert all .jpg, .jpeg and .png image assets to .webp within the same and sub directories. Cwebp Tool: https://www.